I am thinking I like the small NeoAir XTherm mattress for added warmth, rather than the small Women's NeoAir Xlite.

The Hammock Gear Argon fabric is, reportedly, soft, lightweight, and, strong. It is a downproof fabric, so no "leakers".

I think it will have all the snag resistance, puncture resistance and abrasion resistance I need.

I take care of my gear, clearing rocks, twigs and like that.

I always use both a bivy and a groundsheet. In this instance a BorahGear side-zip bivy made of Argon fabric and the Gossamer Gear polycryo ground sheet.

I was hoping for finding 900-fill down, because it became so available for awhile, but 850-fill down is so close to 900-fill down. I will see if I can notice the difference.

I no longer want to accept 550-fill down. It will not pack to the small volume I like, now, without overcompressing it. Besides, compression is really is too much. Down lasts, if not over-compressed. It also feels like carrying a football, when stuffed into a football-size compression sack.

This 16 oz. 850-down quilt should feel just right in the bottom of my 40-liter backpack, and, be cozy warm at the campsite. It has snaps for the footbox, so I can open it up for warmer weather in the mountains, but a reliable 20 degree sleep system is better for a safety margin in the mountains around here.